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Proceedings Paper

Development of a superconducting submillimeter-wave limb emission sounder (SMILES) on the Japanese Experiment Module (JEM) of the International Space Station (ISS)
Author(s): Naomi Ikeda; Junji Inatani; Yukiei Iida; Harunobu Masuko; Takeshi Manabe; Satoshi Ochiai; Yoshihisa Irimajiri; Masumichi Seta; Sheng-Cai Shi; Takashi Noguchi
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Paper Abstract

NASDA and CRL are planning to develop a spaceborne SMILES, which is to be installed in the Exposed Facility (EF) on the JEM of the ISS. By observing gases such as ClO, HCl, NO, N2O, HO2 and BrO in the stratosphere, JEM/SMILES can trace the chemical reactions concerning the ozone depletion and climate change. Global distribution of those gases will be mapped with a height resolution of about 2 km. JEM/SMILES receives low-intensity signals from those gases with highly sensitive SIS (Superconductor-Insulator-Superconductor) mixers at 640 GHz, which are cooled to 4.2 K by a space-qualified mechanical cooler. The mission target is to demonstrate the effectiveness of the submillimeter-wave limb emission sounding and to establish space applicability of the low-noise SIS mixers and a mechanical 4-K cooler. JEM/SMILES is expected to be launched in 2003, and the experiments will last a year or more.

Paper Details

Date Published: 13 November 1998
PDF: 7 pages
Proc. SPIE 3465, Millimeter and Submillimeter Waves IV, (13 November 1998); doi: 10.1117/12.331196
Show Author Affiliations
Naomi Ikeda, National Space Development Agency of Japan (Japan)
Junji Inatani, National Space Development Agency of Japan (Japan)
Yukiei Iida, National Space Development Agency of Japan (Japan)
Harunobu Masuko, Communications Research Lab. (Japan)
Takeshi Manabe, Communications Research Lab. (Japan)
Satoshi Ochiai, Communications Research Lab. (Japan)
Yoshihisa Irimajiri, Communications Research Lab. (Japan)
Masumichi Seta, Communications Research Lab. (Japan)
Sheng-Cai Shi, Nobeyama Radio Observatory (Japan)
Takashi Noguchi, Nobeyama Radio Observatory (Japan)


Published in SPIE Proceedings Vol. 3465:
Millimeter and Submillimeter Waves IV
Mohammed N. Afsar, Editor(s)

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